Steam-generator



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ST-EAM GENERATOR.

No. 331,431. Patented Dec. 1, 1885.

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w. H. PAGE STEAM GENERATOR.

No. 331,431. Patented Dec. 1, 1885.

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W. H. PAGE.

STEAM GENERATOR.

No. 331,431 Patented Dec. 1, 1885.

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UNITED STATES PATENT OFFIECE.

WILLIAM H. PAGE, OF PRESTON, CONNECTICUT.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 331,431, dated December 1, 1885.

Application filed July 30, 1885.

Serial No. 173,017. (No model.)

.To all whom it may concern.-

Be it known that 1, WILLIAM H. PAGE, a citizen of the United States, residing at Preston, in the county of New London and State of Connecticut, haveinvented certain new and useful Improvements in Steam-Generators, of which the following is a specification, reference being had therein to the accompanying drawlngs.

This invention relates to steam-generators for house heaters; and the novelty consists in the construction, arrangement, and adaptation of parts, as will be more fully hereinafter set forth, and specifically pointed out in the claims.

The object of the invention is to provide a boiler which shall be simple and cheap of manufacture, easily and readily constructed for use, and efficient, reliable, and durable in service.

To these ends it consists in a boiler made of peculiar sections secured together.

I illustrate the boiler made of two sections, and prefer that construction. With the lower section is formed a complete fire-box, while the upper section has peculiar flues, which, in connection with the masonry, lead the products of combustion to an escape-flue, the arrangement being such as to impart to the water the greatest possible amount of heat from such products. The upper part of the lower casting comprises a peculiar crown-sheet, against which the fierce heat products abut before they circulate through the flues. This crown is made of peculiar form-a double ogee in cross-section-which allows for contraction and expansion. These features and others of importance are illustrated in the accompanying drawings, which form a part of this specification, and in which-- Figure l is a front elevation of the complete boiler, shown without the necessary masonry, which in practice serves to direct the course of the products of combustion. Fig. 2 is a horizontal section taken on the line a: w of Fig. 1, looking downward. Fig. 3 is a similar view on the line 3 y of Fig. 1; Fig. 4, a similar view taken on the line 2 z of Fig. 1; Fig. 5, a similar view taken on the line m m, Fig. 1, the same being through the steamdrum. Fig. 6 is a central vertical section taken on the line an of Fig. 1, illustrating the boiler in its relation to the masonry.

For convenience of description, I will describe the construction and operation together.

The lower section, B, is a single casting, which rests on suitable supports,c,built in the masonry A, and the masonry along the sides and back of the boiler is arranged at a distance to provide draft-space A. The section 13 comprises an annular water-chamber, b, with corrugated interior 6, which forms the wall of the firebox and a space, as b, which serves as a doorway. It has an annular flange, 12*, which serves as a securing means or as a bearing for the adjacent section, and its upper horizontal portion comprises a crown-sheet, b of double-ogee curve in cross-section, this last feature serving to allow for contraction and expansion without cracking. The space above and within the crown-sheet b is connected with the annular water-chamber in the body by a series of vertical water-tubes, I), set at a sufficient distance apart to allow the products of combustion which have been projected against the crown-sheet to be deflected and circulate between them to the space A between the casting B and the masonry A. Suitable ledges are cast in the part B to support a grate, b.

H designates the upper casting. It comprises asteam-drum, I, having a steam-outlet connection, t, a horizontal water-chamber, J, and a plate, K, having a flange, 7c,which rests upon and is secured to the flange b of the casting B. The steam-drum I and waterchamber J are connected by a series of five (more or less) vertical parallel tubes, i 'i 71 as shown, and the parts J and K are connected by a similar series, k k These tubes allow the ready circulation of water, and extend parallel from front to rear, the central tubes, 4." and It being necessarily the longest.

The products of combustion which have been projected against the crown sheet I) and deflected between the series of tubes 5 are forced to pass first down outside of the part b in order to find an escape, by reason of two vertical plates, L L, arranged in the space A and extending along the length of the tubes W, as seen in Fig. 3. As the said products have no other escape, they pass under the lower edge, Z, of these plates, (see Fig. 6,) and thence upward between said plates L. At the base of the horizontal chamber J is built a closed diaphragm, M, which prevents the products from passing any farther upward, and they pass in a horizontal direction between the parts J and'K, and between the central tube, k, and the adjacent tubes is, as seen in Fig. 3. Passing out at the front side, they are prevented from rising bya horizontal diaphragm, N, and are forced to return on the same horizontal plane between the tubes or legs 76 and k (See Fig. 3.) Having passed upward between the plates L L, they now return to the same point, but upon the outside of these plates; hence they pass to the plane above between the parts I and J and across in a horizontal direction between the tubes t and i and back between the tubes 1" and a, as seen in Fig. 4, to the exit-flue S. (See Fig. 6.) By

this construction the products of combustion are forced to pass back and forth in a horizontal direction between the parts J and K and between the parts I and J, as well as between the legs b, down the outside of the chamber, b, and between and around the several legs '6, i and t and 7a, 70 and 70, thus allowing the greater part of the heat to be ab sorbed by the water.

A sheet-metal or other proper frame, 0, is arranged along the front of the boiler. It is built with reference to the masonry and boiler, and furnishes bearings for the doors, diaphragm N, &c.

Modificationsin details of construction may be made within wide limits without departing from the principle or sacrificing the advantages of my invention, the essential features of which will be readily understood from the foregoing description, taken in connection with the drawings.

WVhat I claim as new is- 1. In a steamgenerator substantially as described, the casting B, formed with a .waterchamber which comprises the Walls of a firebox having a double-ogee-curve crown-sheet, as b and connecting water-ways, as b all cast in one piece, as set forth.

2. The crownsheet b having a form of double-ogee curve in cross-section, and having water-connections b, with the casting B, allin one piece of metal, as set forth.

3. The casting B, having water-chamber which forms the walls of the fire-box, a crownsheet, and a series of water-legs, as b combined with the plates L, and adapted to serve with masonry, as .A A, as set forth.

4.. The combination,with the castings H B, as described, of the plates L, and diapragm M N, as and for the purpose set forth.

5. The casting H, comprising the parts I, J, and K 70, connected by water-ways c" and i, 8tc., 7t k &c., combined with the casting B Z) and the plates L, and diaphragms M and N, as and for the purpose set forth.

In testimony whereof I affix'my signature in presence of two witnesses.

WILLIAM H. PAGE.

Witnesses:

Lucius BROWN, ELISHA T. WnYMoUrH. 

